Donald Trump learned what a red card was for on Tuesday ... and POTUS waited about 2 seconds to use it on the White House reporters!
The playful ejections all went down in the Oval Office, where D.T. played host to FIFA president Gianni Infantino for a celebration of North America landing the 2026 World Cup.
Gianni gifted #45 with his own personalized futbol jersey ... and then brought out the referee cards -- and the exchange that ensued between the two was as hilarious as it was predictable.
WATCH: President Trump jokingly gives the press a red card after receiving soccer penalty cards as a gift during a FIFA meeting in the Oval Office.